- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 15/28 - Anthracenes
Patent holdings for IPC class C07C 15/28
Total number of patents in this class: 231
10-year publication summary
|
9
|
14
|
11
|
7
|
15
|
10
|
38
|
32
|
10
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4240 |
38 |
| LG Chem, Ltd. | 17686 |
36 |
| Samsung Display Co., Ltd. | 35702 |
12 |
| LG Display Co., Ltd. | 13842 |
12 |
| Merck Patent GmbH | 5777 |
10 |
| SFC Co., Ltd. | 323 |
8 |
| Semiconductor Energy Laboratory Co., Ltd. | 11507 |
6 |
| Universal Display Corporation | 1949 |
5 |
| Sumitomo Chemical Company, Limited | 9089 |
4 |
| Boe Technology Group Co., Ltd. | 41768 |
4 |
| DuPont Specialty Materials Korea Ltd. | 295 |
4 |
| E. I. du Pont de Nemours and Company | 3935 |
3 |
| Beijing Aglaia Technology Development Co., Ltd. | 40 |
3 |
| China Petroleum & Chemical Corporation | 1932 |
3 |
| Doosan Corporation | 433 |
3 |
| Gracel Display Inc. | 21 |
3 |
| Research Institute of Petroleum Processing, Sinopec | 369 |
3 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
3 |
| Sony Corporation | 30856 |
2 |
| Canon Inc. | 40790 |
2 |
| Other owners | 67 |